not able to convert string to date

Question

I have an string say , "24:00". I need to convert to date.I tried all the ways.But always getting nil.

here is my code :

let timeformat = DateFormatter()
timeformat.dateFormat = "K:mm"
timeformat.locale = Locale(identifier: "en_US_POSIX")
guard let endtime = dateFormatter.date(from: selCloseTime!) else {
                fatalError("ERROR: Date conversion failed due to mismatched format.")
            }

error: Fatal error: ERROR: Date conversion failed due to mismatched format.

i tried changing format to :

HH:mm
H:mm
KK:mm (small & caps  -> k)
K:mm (small & caps - > k)

but always getting nil. My string can be anything like :

"24.00", "01:00", "20:00" , "03:00"

Any help on that .

Thanks in advance ~

Two different variables `timeformat ` and `dateFormatter ` which one are you using to format the date object? — iamVishal16, Mar 29 '19 at 09:40
@macrodues to found an actual date you need to pass time with date, month and year by this data you only convert it to time format. — Nikunj Kumbhani, Mar 29 '19 at 10:06

Nikunj Kumbhani · Answer 1 · 2019-03-29T09:58:48.383

0

Time format 24 hours to 12 hours

let dateAsString = "13:15"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "HH:mm"

let date = dateFormatter.date(from: dateAsString)
dateFormatter.dateFormat = "h:mm a"
let Date12 = dateFormatter.string(from: date!)
print("12 hour formatted Date:",Date12) // 1:15 PM

edited Mar 29 '19 at 09:58

answered Mar 29 '19 at 09:33

Nikunj Kumbhani

3,758
2
26
51

score 0 · Answer 2 · answered Mar 29 '19 at 09:35

0

You can try this, but please know that you will not have the todays date since you've only set the hour/minute, it doesn't know what year, month or day you want.

let dateString = "20:32"
let df = DateFormatter()
df.dateFormat = "HH:mm"
let d = df.date(from: dateString) // "Jan 1, 2000 at 8:32 PM"

answered Mar 29 '19 at 09:35

Marius Fanu

6,589
1
17
19

it's Return **2000-01-01 15:02:00 +0000** wrong time – Nikunj Kumbhani Mar 29 '19 at 10:04

score 0 · Accepted Answer · answered Mar 29 '19 at 09:41

Change timeformat.dateFormat = "K:mm" to timeformat.dateFormat = "kk:mm" and see this output.

let selCloseTime = "20:00"
let timeformat = DateFormatter()
timeformat.dateFormat = "kk:mm"
timeformat.locale = Locale(identifier: "en_US_POSIX")
guard let endtime = timeformat.date(from: selCloseTime) else {
    fatalError("ERROR: Date conversion failed due to mismatched format.")
}
print(endtime)

not able to convert string to date

3 Answers3